Rename outputSwizzle->writeSwizzle.

It is also used for writes to surfaces other than fragment shader
output. e.g. clears.

Change-Id: Id1eb79be6d1a8aed936456bffa59dee32661cec8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280344
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/samplecode/SampleCCPRGeometry.cpp b/samplecode/SampleCCPRGeometry.cpp
index 3b4c499..ece956b 100644
--- a/samplecode/SampleCCPRGeometry.cpp
+++ b/samplecode/SampleCCPRGeometry.cpp
@@ -345,7 +345,7 @@
 #endif
 
     GrPipeline pipeline(GrScissorTest::kDisabled, SkBlendMode::kPlus,
-                        state->drawOpArgs().outputSwizzle());
+                        state->drawOpArgs().writeSwizzle());
 
     std::unique_ptr<GrCCCoverageProcessor> proc;
     if (state->caps().shaderCaps()->geometryShaderSupport()) {